rmmount.conf(4) File Formats rmmount.conf(4)NAMErmmount.conf - removable media mounter configuration file
SYNOPSIS
/etc/rmmount.conf
DESCRIPTION
The rmmount.conf file contains the rmmount(1M) configuration informa‐
tion. This file describes where to find shared objects that perform
actions on file systems after identifying and mounting them. The
rmmount.conf file is also used to share file systems on removable
media. It can also direct the rmmount utility to run fsck on one or
more file systems before mounting them, with the fsck command line
options specified in rmmount.conf.
Actions are executed in the order in which they appear in the configu‐
ration file. The action function can return either 1 or 0. If it
returns 0, no further actions will be executed. This allows the func‐
tion to control which applications are executed. For example,
action_filemgr always returns 0 if the File Manager is running, thereby
preventing subsequent actions from being executed.
To execute an action after a medium has been inserted and while the
File Manager is not running, list the action after action_filemgr in
the rmmount.conf file. To execute an action before the File Manager
becomes aware of the medium, list the action before action_filemgr in
the rmmount.conf file.
The syntax for the rmmount.conf file is as follows:
# File system identification
ident filesystem_type shared_object media_type [media_type ...]
# Actions
action media_type shared_object args_to_so
# File system sharing
share media_or_file_system share_command_options
# Mount command options
mount media_or_file_system [file_system_spec] -o mount_command_options
# Optionally fsck command options
fsck media_type filesystem_type -o fsck_command_options
Explanations of the syntax for the File system identification fields
are as follows:
filesystem_type An ASCII string used as the file system
type flag of the mount command (see the -F
option of mount(1M)). It is also used to
match names passed to rmmount(1M) from Vol‐
ume Management.
shared_object Programs that identify file systems and
perform actions. This shared_object is
found at /usr/lib/fs/filesys‐
tem_type/shared_object.
media_type The type of medium where this file system
resides. Legal values are cdrom, floppy,
jaz, rmdisk, and zip.
Explanations of the syntax for the Actions fields are as follows.
media_type Type of medium. This argument is passed in from
Volume Management as VOLUME_TYPE.
shared_object Programs that identify file systems and perform
actions. If shared_object starts with `/' (slash),
the full path name is used; otherwise,
/usr/lib/rmmount is prepended to the name.
args_to_so Arguments passed to the shared_object. These argu‐
ments are passed in as an argc and argv[].
The definition of the interface to Actions is located in
/usr/include/rmmount.h.
Explanations of the syntax for the File system sharing fields are as
follows.
media_or_file_system Either the type of medium or the specific
file system to share.
share_command_options Options of the share command. See share(1M)
for more information about these options.
Explanations of the syntax for the Mount command options fields are as
follows:
media_or_file_system Either the type of medium or the specific
file system to share.
file_system_spec Specifies one or more file systems to which
this line applies. Defaults to all file
system types.
mount_command_options One or more options to be passed to the
mount command. Multiple options require a
space delimiter.
Explanations of the syntax for the fsck command options fields are as
follows:
media_type The type of removable medium. A Bourne
shell regular expression that matches names
of file system media whose aliases are
listed under /vol/dev/aliases. Examples
include cdrom0, cdrom1, cdrom*, jaz0, jaz1,
and jaz*.
filesystem_type The type of file system, for example, ufs
or hsfs, that resides on the medium speci‐
fied in media_type.
fsck_command_options One or more options to be passed to
fsck(1M). Multiple options must be sepa‐
rated by spaces.
The algorithm for the fsck configuration line is as follows:
1. The fsck configuration line tells rmmount to run fsck on
filesystem_type, as described above. The filesystem_type
must be correct for the media_type specified.
2. If filesystem_type is not present, rmmount runs fsck on all
file systems on all media that match media_type.
3. If rmmount.conf contains no fsck configuration line or con‐
tains an fsck configuration line with a media_type that does
not match a medium's alias, rmmount does not run fsck on the
removable medium's file system, unless mount reports that
the file system's dirty bit is set.
Default Values
The following is an example of an rmmount.conf file:
#
# Removable Media Mounter configuration file.
#
# File system identification
ident hsfs ident_hsfs.so cdrom
ident ufs ident_ufs.so cdrom floppy rmdisk pcmem
ident pcfs ident_pcfs.so floppy rmdisk pcmem
ident udfs ident_udfs.so cdrom floppy
# Actions
action cdrom action_filemgr.so
action floppy action_filemgr.so
action rmdisk action_filemgr.so
EXAMPLES
Example 1 Sharing of Various File Systems
The following examples show how various file systems are shared using
the share syntax for the rmmount.conf file. These lines are added after
the Actions entries.
share cdrom*
Shares all CD-ROMs via NFS and applies no access restrictions.
share solaris_2.x*
Shares CD-ROMs named solaris_2.x* with no access restrictions.
share cdrom* -o ro=engineering
Shares all CD-ROMs via NFS but exports only to the engineering net‐
group.
share solaris_2.x* -d distribution CD
Shares CD-ROMs named solaris_2.x* with no access restrictions and
with the description that it is a distribution CD-ROM.
share floppy0
Shares the file system of any floppy inserted into floppy drive 0.
share jaz0
Shares the file system on Jaz drive 0.
Example 2 Customizing mount Operations
The following examples show how different mount options could be used
to customize how rmmount mounts various media:
mount cdrom* hsfs -o nrr
Mounts all High Sierra CD-ROMs with the nrr (no Rock Ridge exten‐
sions) option (see mount_hsfs(1M)).
mount floppy1 -o ro
Will always mount the second floppy disk read-only (for all file
system types).
mount floppy1 -o ro foldcase
Will always mount the second floppy disk read-only (for all file
system types) and pass the foldcase mount option.
mount jaz1 -o ro
Mounts the medium in Jaz drive 1 read-only, for all file system
types.
Example 3 Telling rmmount to Check File Systems Before Mounting Them
The following examples show how to tell rmmount to check file systems
with fsck before mounting them, and how to specify the command line
options to be used with fsck:
fsck floppy* ufs —o f
Performs a full file system check on any UFS floppies, ignoring the
clean flag, before mounting them.
fsck floppy* ufs -o p
Uses the fsck p (preen) flag for all UFS floppies.
fsck cdrom* -o f
Tells rmmount to run fsck before mounting any file system on CD-
ROM.
fsck jaz* ufs -o f
Tells rmmount to perform a full file system check on any UFS Jaz
media, ignoring the clean flag, before mounting them.
Example 4 Using the nohidden mount Option
The following example shows how to use the nohidden mount option:
$ mount * pcfs -o nohidden
The nohidden mount option is passed when a pcfs file system is mounted
on any media type, preventing users from accessing files on the medium
for which the hidden attribute is set.
SEE ALSOvolcancel(1), volcheck(1), volmissing(1), mount(1M), mount_hsfs(1M),
rmmount(1M), share(1M), vold(1M), vold.conf(4), volfs(7FS)NOTES
When using the mount options line, verify that the specified options
will work with the specified file system types. The mount command will
fail if an incorrect mount option/file system combination is specified.
Multiple mount options require a space delimiter.
SunOS 5.10 9 Feb 2009 rmmount.conf(4)
